The long pair of nacelles look almost undersized next to the Renaissance, but they'll do just fine. By altering the warp field in this unbalanced way you're enabling the Ferdinand to push up to Warp 9. More realistically few commanders are going to push it past 8.5 given the kind of strain that puts on the system, but it's a good option to have. Given the necessity of placing the nacelles at the far edges of the ship the struts have become quite long, hooking into the nacelles from the top and joining it to the secondary hull just above the deflector. It's not the most elegant thing, but it works and that's what matters.
That leads to the tactical systems. Your choice to expand the secondary hull has left room for a pair of aft launchers, but the forward torpedoes prove more vexing. Eventually you elect to abandon the midline principle and put one launcher halfway to starboard and the other to port. It reminds you a little of the old system on the NX-class, but ultimately there was nothing wrong with that. It's just that the torpedoes need individual guidance solutions, which is something every ship has done for the last fifty years anyway. The Ferdinand's isolinear computer core won't have any issues.
That leaves the phasers. Starfleet is agitating for the new phaser strips again, although there's no way you are going to fit a complement of six on something the size of the Ferdinand. Still even a quartet should cover most of the important saucer-based firing arcs, and you'll see if you can fit one somewhere to cover aft. Alternatively the Type-8 is tried and true. Six for the saucer, one aft, job done with no mess.
Project Ferdinand
The ship should have sufficient tactical armament for convoy duty and responding to distress, as well as sufficient cargo space to act as a bulk hauler. It must have a crew of 100 or less.
[X] 5 Type-9 Phaser Arrays (Prototype)
Definitely this if I read the thread discussion right we want it as an upgrade for the excelsior replacement in the future?
Lol the vote looks remarkable uniform. So any idea if we try to make a TESBED for a better warpdrive next? I think we need that to take advantage of the better nacelles? Or we can make the excelsior replacment and hope everything works out to get a excelent ship.
Going against the stream and taking the old type 8. Because it makes producing the Replacment-Miranda easier, type 8 is still in use during the Dominion War in DS9 and is still suitable. The Type 9 can be tested on something like an Ambassador with ease. Historically speaking, you don't want to try out prototypes on something you wish to use quickly and produce in large numbers. That is why new tech is often installed on large units such as capital ships for testing. The powers-that-be tend to be more willing to pump money into it because they are prestige projects.
With the idea of the Ferdinand class being mass produced, we will get a lot of feedback on the Type-9 Phaser Arrays so that on our next big project we would have worked out most issues with them.